diff --git a/_smartmontools b/_smartmontools
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+#compdef smartctl smartd
+# ------------------------------------------------------------------------------
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above copyright
+#       notice, this list of conditions and the following disclaimer in the
+#       documentation and/or other materials provided with the distribution.
+#     * Neither the name of the zsh-users nor the
+#       names of its contributors may be used to endorse or promote products
+#       derived from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+# DISCLAIMED. IN NO EVENT SHALL ZSH-USERS BE LIABLE FOR ANY
+# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# ------------------------------------------------------------------------------
+# Description
+# -----------
+#
+#  Completion script for smartmontools (http://smartmontools.sourceforge.net).
+#
+# ------------------------------------------------------------------------------
+# Authors
+# -------
+#
+#  * Massimiliano Torromeo <massimiliano.torromeo@gmail.com>
+#
+# ------------------------------------------------------------------------------
+# -*- mode: zsh; sh-indentation: 2; indent-tabs-mode: nil; sh-basic-offset: 2; -*-
+# vim: ft=zsh sw=2 ts=2 et
+# ------------------------------------------------------------------------------
+
+_smartctl() {
+	local context state line expl
+	local -A opt_args
+
+	_arguments -A "-*" \
+		'(-h --help --usage)'{-h,--help,--usage}'[Show help message]' \
+		'(-V --version --copyright --license)'{-v,--version,--copyright,--license}'[Print license, copyright, and version information and exit]' \
+		'(-i --info)'{-i,--info}'[Show identity information for device]' \
+		'(-a --all)'{-a,--all}"[Show all SMART information for device]" \
+		'(-x --xall)'{-xa,--xall}"[Show all information for device]" \
+		'--scan[Scan for devices]' \
+		'--scan-open[Scan for devices and try to open each device]' \
+		\
+		'(-q --quietmode)'{-q,--quietmode}'[Set smartctl quiet mode]:TYPE:(errorsonly silent noserial)' \
+		'(-d --device)'{-d,--device}'[Specify device type]:TYPE:(ata scsi sat usbcypress usbjmicron usbsunplus marvell areca 3ware hpt megaraid cciss auto test)' \
+		'(-T --tolerance)'{-T,--tolerance}'[Set tolerance]:TOLERANCE:(normal conservative permissive verypermissive)' \
+		'(-b --badsum)'{-q,--badsum}'[Set action on bad checksum]:TYPE:(warn exit ignore)' \
+		'(-r --report)'{-r,--report}'[Report transactions]:TYPE:' \
+		'(-n --nocheck)'{-n,--nocheck}'[No check if MODE]:MODE:(never sleep standby idle)' \
+		\
+		'(-s --smart)'{-s,--smart}'[Enable/disable SMART on device]:VALUE:(on off)' \
+		'(-o --offlineauto)'{-s,--smart}'[Enable/disable automatic offline testing on device]:VALUE:(on off)' \
+		'(-S --saveauto)'{-S,--saveauto}'[Enable/disable attribute autosave on device]:VALUE:(on off)' \
+		\
+		'(-H --health)'{-h,--health}'[Show device SMART health status]' \
+		'(-c --capabilities)'{-c,--capabilities}'[Show device SMART capabilities]' \
+		'(-A --attributes)'{-A,--attributes}'[Show device SMART vendor-specific attributes and values]' \
+		'(-f --format)'{-f,--format}'[Set output format for attributes]:FORMAT:(old brief)' \
+		'(-l --log)'{-l,--log}'[Show device log]:TYPE:(error selftest selective directory background sasphy sataphy scttemp scterc gplog smartlog xerror xselftest)' \
+		'(-v --vendorattribute)'{-v,--vendorattribute}'[Set display option for vendor attribute]:N,OPTION:' \
+		'(-F --firmwarebug)'{-F,--firmwarebug}'[Use firmware bug workaround]:TYPE:(none samsung samsung2 samsung3 swapid)' \
+		'(-P --presets)'{-P,--presets}'[Drive-specific presets]:TYPE:(use ignore show showall)' \
+		'(-B --drivedb)'{-B,--drivedb}'[Read and replace drive database from file]:FILE:_files' \
+		\
+		'(-t --test)'{-t,--test}'[Run test]:TEST:(offline short long conveyance vendor select pending afterselect,on afterselect,off scttempint)' \
+		'(-C --captive)'{-C,--captive}'[Do test in captive mode]' \
+		'(-X --abort)'{-X,--abort}'[Abort any non-captive test on device]' \
+		\
+		'1:Device:_files'
+}
+
+_smartd() {
+	local context state line expl
+	local -A opt_args
+
+	_arguments -A "-*" \
+		'(-h --help --usage)'{-h,--help,--usage}'[Show help message]' \
+		'(-V --version --copyright --license)'{-v,--version,--copyright,--license}'[Print license, copyright, and version information and exit]' \
+		\
+		'(-A --attributelog)'{-A,--attributelog}'[Log ATA attribute information to {PREFIX}MODEL-SERIAL.ata.csv]:PREFIX:' \
+		'(-B --drivedb)'{-B,--drivedb}'[Read and replace drive database from file]:FILE:_files' \
+		'(-c --configfile)'{-c,--configfile}'[Read configuration file or stdin]:FILE:_files' \
+		'(-d --debug)'{-d,--debug}'[Start smartd in debug mode]' \
+		'(-D --showdirectives)'{-D,--showdirectives}'[Print the configuration file directives and exit]' \
+		'(-i --interval)'{-i,--interval}'[Set interval between disk checks to N seconds, where N >= 10]:Seconds >= 10:' \
+		'(-l --logfacility)'{-l,--logfacility}'[Use syslogfacility local0 - local7 or daemon]:FACILITY:(local0 local1 local2 local3 local4 local5 local6 local7)' \
+		'(-n --no-fork)'{-n,--no-fork}'[Do not fork into background]' \
+		'(-p --pidfile)'{-p,--pidfile}'[Write PID file]:FILE:_files' \
+		'(-q --quit)'{-q,--quit}'[Quit on...]:WHEN:(nodev errors nodevstartup never onecheck showtests)' \
+		'(-r --report)'{-r,--report}'[Report transactions for...]:TYPE:(ioctl ataioctl scsiioctl)' \
+		'(-s --savestates)'{-s,--savestates}'[Save disk states to {PREFIX}MODEL-SERIAL.TYPE.state]:TYPE:'
+}
+
+_smartmontools() {
+	local ret=1
+	_call_function ret _$service
+	return ret
+}
+
+_smartmontools "$@"
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